(i) n=5 means l=0,1,2,3,4 since m=+1 hence total no. of electrons will be =0 ( from s)+2(from p)+2(from d)+2( from f) +2 (from g) =0+2+2+2+2=8 (ii) n=2,l=1, ml=−1, ms=−1/2 represent 2p orbital with one electron.
JEE Main 2013 — Chemistry Physical Chemistry
Given (A) n=5, mℓ=+1 (B) n=2,ℓ=1, mℓ=−1, ms=−l/2 The maximum number of electron(s) in an atom that can have the quantum numbers as given in (A) and (B) are respectively:
Held on 25 Apr 2013 · Verified 6 Jul 2026.
25 and 1
8 and 1
2 and 4
4 and 1
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